Heel seat trimming machine



June 23, 19131. A. c. ROGGE ET AL 1,811,188

HEEL SEAT TRTMMING MACHINE Filed Feb. 1. 1929 nvc'nhn, A C Rogge j-yordon 64 gen1* (like: um,

Patented June 23, 1931 A'UNITED .-sTATEs PATENT OFFICE ALBERT C. ROGGE AND HIRAM GORDON, 0F COLUMBUS, OHIO HEEL SEAT TRIMMING MACHINE Application filed February 1, 1929. Serial No. 336,806.

This invention relates to heel seat trim ming machines for convexing the heel seats of shoes and has for its primary object the provision of a device for beveling the sole of a shoe in a quick, labor-saving and economical manner in order to provide a heel seat margin around said shoe which constitutes a convex surface and which conforms to the mating concave surface of a wood heel.

' marginal edges of the outsole of a shoe where such outsole registers with the heel seat. By beveling the outsole in this manner the shoe proper presents generally a convex configuration which conforms to the concave shape of the heel.

It is an outstanding object of the present invention to provide an improvedmachine for automatically trimming or beveling the edges of the outsole to the4 end of permitting this operation to be carried out expeditiously, economically and without injury to any portion of the shoe during the trimming or cutting operation. It is another object of the invention to pro- 'vide a heel seat trimming machine wherein is included` a reciprocatory flexible cutting blade and with which co-operates a rotatable work positioning disk, the latter being formed to present an extended, thin peripheral edge which spreads apart the outsole of the shoe from the insole during the trimming operation, so that only the marginal portions of the outsole will be engaged with the cutter blade during the bevelng or trimming process, whereby injury to exposed portions of the shoe Iis avoided and a beveled edge of a deisired character produced around the outso e. v

It is another object of the inventionto provide a reciprocatory cutting blade of a thin fiexible construction of relatively narrow width which is ,located immediately adjacent to the flat upper surface of the work positioning disk, the disk being of greater diameter than the width of the cutter blade in order that said blade will lintersect the disk to provide a work receiving throat which ref ceives the materials to be cut or. trimmed.

It is a further object of the invention to provide means for admitting of the flexing of the cutter blade during this reciprocation, and to govern the flexure of the blade to control thev angle of the cut or-bevel which it produces on the edge of the outsole.

-llith these and other objects in view which will appear as the description proceeds, the invention consists in the novel features of construction, combinations of elements and arrangements of parts hereinafter to be fully described and pointed out in the appended Y claims.

In' the accompanying drawings Figure lis a side elevation of the heel seat beveling machine comprising the present invention,

Figure 2 is a similar view, but partly in vertical section disclosing the machine engagedin theoperation of beveling the heel seat of a shoe, n i

Figure 3 is a plan view of the structure disclosed in Figure 2, and

Figure 4 is an enlarged detail vertical sectional view showing the work positioning disk of the machine andthe flexed vibratory cutting blade when the ma-chine is engaged in a heel seat cutting operation.

Referring more particularly to the details of the invention, the numeral 1 designates lthe stationary frame of the machine, which Imannerl The upper end of the frame terminates in an inverted U section 2, in which is A slidably mounted a plunger 3, the latter being arranged for reciprocation within a bearing 4 provided in one leg of 'the frame section 2.

In this instance one end of the plunger is nected as at 7 to belt l0 trained around said wheel for the purpose of effecting its positive rotation: when the belt is driven by a' prime mover (not shown) of any suitable type, or through other motion transmitting instrumentalities.

The forward end of the-plunger 3 is longitudinally split to removably receive the inner end of a substantially flat, horizontally extending, flexible and reciprocatory cutting blade 11. This bladeis formed from a strip of steel and is relatively thin in cross-section so that between its supported ends the blade is permitted to flex. A clamping sleeve 12 surrounds the split end of the plunger 3 `and is provided wlth a tightening screw 13 by which the blade 11 is firmly connected with the plunger for reciprocatory movement in unison therewith. The outer leg 14 of the U-shaped section 2 of the frame terminates at its lower end in a horizontally extending bearing plate 15 disposed immediately adjacent to the upper surface of the blade 11. A vertical face of the inner leg of the section 2 is provided with an angle bracket 16 having the vertical portion thereof formed in an elongated slot to receive a screw 17 which frictionally holds the bracket in a desired position of vertical adjustment in re- The sides of the lation to the frame, for a purpose to be heremafter specified. The horizontally extending arm of the bracket 16 receives a supportmg plate 18 which is adjustable on the; bracket 16 in a horizontal plane through theI medium of a clamping screw 19, which is adjustable in a slot provided in the horizontal arm of the bracket 16. Through this construction rit will be observed that the plate 18 may be adjusted horizontally and verti` cally as regards the stationary frame structure of the machine.

The plate 18 terminates in a substantially horizontal, upwardly disposed face 20 upon which is formed a block 21. This block cooperates with the plate 15 in the matter of guiding the blade 11 in its horizontal vibratory movement. Also carried by the face 20 of the plate 18 is a disk-like, work positioning member 22. This member, as shown particularly in Figures 2 and 3, is provided with a flat, horizontally disposed upper surface which is arranged immediately beneath `but in practically the plane of the blade 11. disk possess a curvature adapting the same to the curvature of the heel portion 23 of a shoe 24, the arrangement being such that the flat upper surface of the disk possesses the greatest diameter while its lower portion possesses its smallest diameter. The curvature of the sides of the disk that of the blade 11.

, thereof, w

h eel seat as shown more particularly in Figure 4. The disk itself is rotatably supported upon the face 20 of the plate 18 by a journal screw 27, in order that the disk may be revolved about a substantially vertical axis.

It will be seen that by adjusting the relative positions ofthe bracket 16 and the supporting plate 18 with relation to each other and to the frame structure the loperative positions of the work positioning disk may be readily controlled to adapt the desired working positions.

The outer leg 14 of the frame section 2 is provided with 'a vertical face 28 arranged above the horizontal plate 15. To the face 28 there is secured for vertical adjustment an angle bracket 29, and the horizontal leg of this bracket has adjustabl connected therewith an outer bearing mem er 30. The lower end of this member receives the outer portion of the flexible knife or blade, 11. As shown in Figure 2, the slot 31 possesses a height or thickness in excess of In other words, the blade is allowed some freedom of movement within the confines of the slot 31, which movement permits of the flexing of the blade to conform to its operating-positions illustrated in Figures 2 and 4. Due to the relative adjustment afforded between the bracket 29 and the bearing member 30 and also to the vertical adjustment between the bracket 29 and the frame 2, the outer l blade may be engaged by the bearing member in order to control the degree of iexure of said blade and the corresponding angle of the cut which it'produces.

The blade is provided with inclined upper surfaces 32 which provides parallel, razorlike cuttin edges33 on the opposite sides ich edges are ordinarily positioned between the outer bearing member 30 and the work positioning disk 22 so that by the rapid reciprocatory motin of the cutting blade, during t-he operation of the machine, the outer sole of the shoe may be trimmed or beveled around its peripheral portion in a rapid and effective manner.

From the foregoing it will be seen that the present invention embodies fundamentally a' which is adaptedapparatus to portion of the knife or seat which enables the shoe to be manually turned and which confines the cutting action to the portions of the material comprising the outsole to be removed. The flexible cutter blade virtually contacts with the upper side of the disk member 22 and by doing so constitutes the angle of the work receiving throat so that when the segment of the heel seat portion of the shoe is presented it must iiex or displace the blade in'order to secure the desired cutting action.`

It is highly essential, as previously stated, in machines of this type to provide for rapid operation and yet to prevent the cutting blade from injuring or mutilating the upper or other exposed portions of the shoe. Therefore, in the use of the machine a lasted shoe is presented to the machine, as shown in Fig- -ures 2, 3 and 4. By way of illustration, reference is to be had to Figure 4 particularly wherein it will be noted that the shoe last is designated by the numeral 34', the upper of the shoe by the numeral 35, and the in and out sole by the numerals 25 and 26. As usual, the upper overlaps the marginal portions of the insole and the overlapping portions are of the cutting blade.

tacked or otherwise secured together as at 36. The usual wooden, ber or leather pegs 37 are employed to unite the insole -and outsole. These pegs are, of course, formed from material that may be cut or severed by the action As previously eX- plained, it is necessa to bevel the outsole of the'shoe to provi e a heel seat margin constituting a convex surface which in formation approximates the mating concave surface of a wood heel.

Therefore, in operation, the lasted shoe is placed against the work positioning disk22 and is held in engagement therewith by manual pressure exertedby the operator. The heel portion of the shoe is then revolved which brings the marginal portion of the outsole into contact with the razor-like edges of the cutting blade. In order that the outsole may be trimmed or beveled to what may be termed a feather edge the construction of the machine is such that the knife-like perimeter of the disk 22 enters and slightly forces apart the marginal portions of the outsole from the heel seat or upper. In other words, the marginal portions of the insole and upper are located below thework positioning disk while the outsole and the cutting blade are carried by the upper surface or are arranged above said disk. This results in bending or flexing the cutting blade from its normal horizontal plane which it assumes when inactive, and this flexing of the blade causes the latter to assume positions by which the desired bevel is imparted to the margins of the outsole. The degree of this bevel may be varied by shifting the bearing member 30 horizontally tion When moved toward the frame section the beveled edge produced on the outsole is of sharp inclination or at a greater acute angle to the horizontal, whereas when the bearing member 30 is moved away from the frame section this angularity decreases and the bevel becomes longer. Due to the fact' that the upper of the shoe is positively separated from the cutting knife by the thin peripheral edge of the disk the upper of the shoe cannot be damaged during the heel beveling or trimming operation. Then, due to the iexibility of the blade or knife and the manner of supporting the same between fixed guides, the blade automatically assumes the proper .position of flexure'necessary to secure the desired angle of the cut around the marginal portions of the outsole. Further, if desired, the bevel of the outsole may terminate in a sharp edge, which is extremely thin so that the outsole may conform readily to the concavity of a wood heel seat. The thickness of this edge may be varied by adjusting the work positioning disk vertically in relati-on to the cutting blade.

What is claimed is:

l. A machine for beveling the sole of a shoe to provide a heel seat margin constituting a convex surface approximating the matladjacent and in parallel plane with the cutting edge of'said blade, said cutting blade and work positioning member being adapted to be forced into angular relationship by the work to provide a work receiving throat in relation to which the work is to be turned.

2. A device for beveling the sole of a shoe to provide a heel seat margin constituting a substantially convex surface to conform with the mating concave surfacetof a wood heel, comprising a frame, a flexible cutting blade mounted for reciprocation in said frame, 'and a work positioning disk rotatably carried by said frame immediately adjacent to said cutter blade, said disk being provided with Ja thin peripheral edge adapted to enter between the in and out sole portions of a shoe to cause the sole portion of the shoe to flex said blade and to present the cutting edge of the blade to the portions-of the outsoleto be removed.

3. A device for beveling the outsole of a shoe to provide a convex heel seat on the shoe approximating the mating concave surface of a wood heel, comprising a frame, a thin iiexible cutter blade supported lfor reciprocation in connection with said frame, said blade being provided with-a razor-like cutting edge, and a shoe positionin disk carried by said frame, said disk being ormed to 1nclude a substantially flat surface arranged immediately adjacent to said blade, the sides of said disk being shaped to follow the curvature of the heel seat, said blade and the peripheral portion of said disk being adapted to e forced into fa relatively angular rela.- tionship by the work to produce a, Work receiving throat between the cutting edge of said bladeand the disk.

4. A device for beveling the heel seat of a shoe, comprising a frame, a thin flexible cutting blade mounted for reciprocation between spaced guides formed with said frame, theupper surface of said blade being reversely beveled to produce razor-like cutting' edges on the opposite sides of said blade, the lower `surface of said blade being substantially flat,

and a work positioning member carried by said frame and formed to include a flat surface in conta-ctual relationship to the fiat surface of said blade.

5. A heel seat trimming machine for convexing the heel seat of shoes, comprising a frame formed to include spaced guides, a thin flexible cutting blade mounted for reciprocation in connection with said guides, a work positioning member provided with a thin marginal portion arranged immediately adjacent to said cutting blade, and means for admitting of adjustment of said Work positioning member relative to said blade, said blade and Work positioning member being adapted to be forced into angular relationshipV by the work to produce an angular mouth for the reception of the work.

6. In a heel seattrimming machine, a frame, a flexible cutter blade mounted for reciprocation in connection with said frame, and a Work positioning member arranged immediately adjacent to said blade and operative to flex said blade by forcing a shoe sole engaged With'said member into wflexlng contact with said blade.

7. In a heel seat=.trimming machlne comprising a frame formed to include spaced guides, a iexible cutting blade mounted for reciprocation in said guides, and a work positioning disk carried by said frame lmmedlately adjacent to said blade, said dlsk being provided with a flat surface adapted for contact with said blade, the edges of said disk,I

being curved toconform to the up er curvature of a shoe heel, the periphery o sa1d dlsk presenting an extended thin-edged port1on arranged to enter between the in and o ut sole portions of a shoe in order to force sald outsole portion into cutting and flexing engagement with said blade.

8. In a heel seat trimming machine comprising a frame formed to include spaced guides, a flexible cutting'blade mounted forV reciprocation in said guides, anda rotatable work positioning disk carried by said frame immediately adjacent to said blade, said disk being provided with a Hat surface adapted for contact with said blade, the edges of sald peripheral edge of they disk being curved to conform to the upper curvature of a shoe heel, the periphery of said disk presenting an extended thin-edged portion arranged to enterbetween the in and out sole portions of a shoe in order to force said outsole portion into cutting and flexing engagement with said blade.

9. In a heel seat trimming machine, a frame, a/iexible cutting blade mounted for reciprocation vin said frame, means for reciprocating said blade, and a work positioning disk positioned immediately adjacent to said blade, the peripheral edge of said disk being ada ted to be forced into angular relationship y the work.

l0. In a heel seat trimming machine, a frame structure formed to include a pair of spaced guides, a thin flexible cutting blade mounted for reciprocation in said guides, said blade being provided with a razor-like cutting edge, and a shoe guiding member carried by said frame structure and arranged immediately adjacent to said cutting blade, the outer marginal edgeof said guiding member being arranged in intersecting relationship'with the cutting edge of said blade.

l1. A device for beveling the outsole of a shoe to provide a heel seat margin conforming to the convex surface of a wood heel, comprising a frame, a reciprocatory cutter blade comprising a thin fiat flexible strip of material, spaced guides formed in connection with said frame for effecting the support of said blade, and a disk member mounted in connection with said frame immediately below said blade, said disk member being provided With a substantially flat upper surface arranged in contactual engagement with said v blade, shaped a shoe heel seat, the peripheral edge of said disk being of thin extended form to separate the outsole of the heel seat from the u per when said outsole is engaged by said bladJe.

12.. A heel seat trimming machine for shoes comprising a frame formed to include spaced the body of saidv disk member being the cutting edge of said blade and to conform to the upper curvature of' guides, a flexible cutter blade mounted for reciprocation in a substantially horizontal plane in connection with said guides, a work positioning disk rotatably carried by said frame 'immediately below said blade, the cutdelected by the work into angular rela-tfon with the peripheral edge of said disk, and means admitting of relative adjustment of said disk with respect to said cutting blade.-

. ting edge of said blade being adapted to be 13. In a heel seat trimming machine, a

frame formed to include a pair of spaced guides, a thin flexible cutter blade mounted for reciprocation in said guides, a work positioning'member positioned immediately adjacent to said blade and one of said and means admitting of adjustment o either ides,

of said guides to regulate the angle of exure of said cutting blade.

14. In a heel seat trimming machine for preparino' soles for the attachment of wood heels, a rame formed to include a pair of spaced guides, a thin flexible cutter blade mounted for reciprocation in unison with said guides, said guides being formed to admit of the flexing of said blade duringl its reciproca.- tion, and a Work positioning disk carried by said frame immediately adjacent to one oi said guides.

In testimony whereof we aix ou1` signatures.

ALBERT C. ROGGE. HIRAM GORDON. 

